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Answer:

Step-by-step explanation:
we have

Substitute the value of y=27 in the equation and find the value of x
so





2X^3-2x-40=0
Hope this helps
Subtract $7.08 from $166.30 = $159.22
Answer:
(-5,-13)
Step-by-step explanation:
Find the vertex of the parabola y=1/5x^2+2x−8.
In this equation a=15 and b = 2.
x= -2/2(1/5) = -2/2/5 = -2/1 * 5/2 = -5
Substitute −5 into the equation y=1/5x^2+2x−8
y=1/5(−5)^2+2(−5)−8
y=5−10−8
y=−13
The vertex is (−5 , −13)